/*
 * Copyright (C) 2010-2012 Enrique Lara (enrique.posix2.lara@gmail.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
 * limitations under the License.
  */
package trs.wmata.api;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import org.xml.sax.InputSource;

public class ApiSource {
    static final int READ_TIMEOUT_MILLIS = 10000;
    static final int BUF_SIZE = 2048;
    protected final String urlStr;
    private HttpURLConnection c;

    public ApiSource(final String urlStr) {
        this.urlStr = urlStr;
    }

    public InputSource getInputSource() throws IOException {
        if (c == null) {
            openConnection();
        }

        return new InputSource(c.getInputStream());
    }

    public void openConnection() throws MalformedURLException, IOException {
        final URL url = new URL(urlStr);
        c = (HttpURLConnection) url.openConnection();
        c.setReadTimeout(READ_TIMEOUT_MILLIS);
    }

    public int getResponseCode() throws IOException {
        return (c != null) ? c.getResponseCode() : (-500);
    }

    public String getResponseMessage() throws IOException {
        return (c != null) ? c.getResponseMessage() : "";
    }

    public void disconnect() {
        if (c != null) {
            c.disconnect();
        }
    }
}
